Answer:
x=8
this equation has double roots
x^2+16x+64=0
(x+8)(x+8)=0
Answer:
if 3 inches on a map = 42miles
then x = 322miles
cross multiply
3inches by 322 = xby42miles
966inchesmiles = 42xinchesmiles
divide both sides by 42miles
xinchees = 23
therefore 322miles distance will take 23inches on a map
Step-by-step explanation:
Substitute the value x for any number, for example x=1, you substitute x for the value 1, so this is the final equation: y= -3(1)+5 and the answer you get is the value of y. Continue substituting x for any value in the graph of course and then write the answer for y which is the number you get by solving the equation. Then plot the graph with the points you got. Hope this helps, let me know if you need more help :)
Answer: -7
Step-by-step explanation: y+3x=8x-7
subtract 3x from both sides y=5x-7
y=Mx+b
b=-7
Answer:
Step-by-step explanation: